I've got an exchequer leghorn chick that sleeps more than the others, these are short little naps and then she wakes up and is pretty alert and active. I know that chicks sleep a lot but she sleeps all the time in short spans. She eats and drinks fine but not as often as the others. Is this because she is smaller? Is she sick? What can I do to help her? I think shipping was rough on her as I just go them today. Here is a picture